Python

Source: http://www.cnblogs.com/dkblog/archive/2011/02/24/1980654.htmlThe definition of an object method in Python is bizarre, and the first parameter is generally named self (equivalent to this in other languages), which is used to pass the object

functionTake the initiative to get a list of CSDN articles and add clicks to each post.Source CodeImport urllib.requestimport reimport timeimport randomfrom bs4 Import Beautifulsoupp = Re.compile ('/a359680405/article/ details/... ') #自己的博客主页url =

ObjectiveThe new job, the development of Python language, also recorded their own learning process.One, recursively gets all subclasses of a parent classall_subclasses = {' 0 ': ' 0 '}def get_all_classes (model): """ Get all child classes of

I. Class1 #Coding=utf-82 classAnimal (object):3 def __init__(self, name):4Self.name =name5Zebra = Animal ("Jeffrey")6 PrintZebra.name7 8 #Override9 classEmployee (object):Ten def __init__(self, emplotee_name): OneSelf.employee_name =Emplotee_

first of all, Sellect, poll, epoll the difference between the threeSelectSelect was first seen in the 4.2BSD in 1983, and it was used by a select () system to monitor multiple file descriptor arrays (everything in Linux is file, block device, socket

In the previous article, there is a program that uses PYTHON-SMTP to send a message, using a crawler to randomly crawl a piece of the Satin Web site and then sent to the designated recipient.Running this program on the local computer is only a

1, file operationLocate file-----Open file------File action-----------file closesFile_open = file (path, mode)Read file:M.read ()obj = M.readlines ()---------#一行行读取, and obj is a listAbout read mode:Table mode Mode Describe

Installing a third-party library appears Python version 2.7 required, which is not found in the registryCreate a file register.py content as follows. Then execute the script.Import SYS from _winreg import * # tweak as necessary version = Sys.version[

Source: http://andylin02.iteye.com/blog/841604Conclusion: Python's global variables: int string, list, dic (map) can modify its value if there is global. Regardless of whether this global exists in the IF, or whether the if can be executed.However,

http://drops.wooyun.org/tips/6313Python identification site verification code Manning2015/05/28 10:570x00 identification involves technology Verification code identification involves many aspects of the content. Difficult to start, but after

Source: http://andylin02.iteye.com/blog/841632python global variable1. The function is accessible to all variablesA = 9527def modify ():Print aif __name__ = = ' __main__ ':Modify ()The result of the execution is to print out 95272. If you modify a

You can see the Python version number change, find a book to learn Python, Mark Lutz's Python learning manual, I suggest I directly learn the latest version of Python, to the website to see, Is 3.5.1, but does not support XP, can support XP is 3.4.4,

A. Python open file code is as follows:f = open ("D:\test.txt", "W")DescriptionThe first parameter is the file name, including the path;The second parameter is the mode that opens ' R ': Read-only (default. Throws an error if the file does

One, the specification of the Python script:#!/usr/bin/env python#-*-Coding:utf-8-*-Import Os,urllib,mysqldb,time,platformMain ():Passif __name__ = = "__main__":Main ()Two, each function corresponds to a functionThis I think the most important, each

Original Python crawler CodeMainly used in the URLLIB2, BeautifulSoup module#Encoding=utf-8ImportReImportRequestsImportUrllib2ImportdatetimeImportMySQLdb fromBs4ImportBeautifulSoupImportsysreload (SYS) sys.setdefaultencoding ("Utf-8")classSplider

[System Development] Simple Image Upload verification for Django Admin, I have an ImageField in models to save the user's profile picture. I want to check the size of the profile picture when uploading through Django Admin. If it is too large, an

Data Visualization (2): Data Visualization Source: https://www.dataquest.io/mission/132/data-visualization-and-exploration Data Source https://github.com/fivethirtyeight/data/blob/master/college-majors/recent-grads.csv This article describes how

Learning how to compile a simple multiplication algorithm in python and how to perform a multiplication in python Implementation Code: #! /Usr/bin/python // handler # filename jiafa. py // file name import sys import random running = True //

Use python to crawl csdn blog visits I recently learned python and crawlers and want to write a program trainer. So I thought of my blog visits that everyone cares about. I used python to get access to my blog, this is also part of the project that

Create Beautiful charts in python You may think that python is not suitable for graphic interface development. But python has a very beautiful icon module: pycha. Isn't it good? Of course, this is only a small part of the chart, there are many